Hitachi GR4000 Series Installation Manual page 195

Step 3
replacement. (See the section 4.5.5, which gives you the instruction related to the
attachment/detachment of the GR4000-160E2/GR4000-320E (DC) power cable.)
DC power cable
Figure 5.4-26 Power cable removed from the power supply unit
!
Step 4
Screws
Figure 5.4-27 Screws to be removed from the power supply unit
520-10-014-20X
Remove the power cable from the power supply unit targeted for
Caution: Make sure that the circuit breaker of a power facility is set to OFF before
attaching or removing a DC power cable. Attaching or removing a DC power
cable with the circuit breaker set to ON will cause an electric shock.
Loosen the screws of the power supply unit targeted for replacement.
GR4000 Installation Guide Version 1.00 - Preliminary
Screws
177